Title:
VIBRATION ISOLATOR
Document Type and Number:
Japanese Patent JP2020063751
Kind Code:
A
Abstract:
To attenuate and absorb minute amplitude vibration.SOLUTION: A vibration isolator comprises: a first mounting member 11 and a second mounting member 12; an elastic body 13; a partitioning member 26; and an inner pressure absorber 19. A communication hole 20 communicating a first liquid chamber 16a and a second liquid chamber 16b through the inside of an accommodation chamber 17 is formed in the partitioning member. The inner pressure absorber is configured to transit, in a process of elastic deformation in one direction, from a positive rigidity state in which an external force in the one direction is required to a negative rigidity state in which the deformation in the one direction progresses even without applying the external force in the one direction. In a load displacement drawing at the time when the inner pressure absorber is deformed in the one direction, inclination in the negative rigidity state is smaller than inclination in the positive rigidity state, and the inner pressure absorber is accommodated in the accommodation chamber in the negative rigidity state while matching the one direction with an axial direction.SELECTED DRAWING: Figure 1
Inventors:
NAGASAWA MASAKAZU
Application Number:
JP2018194289A
Publication Date:
April 23, 2020
Filing Date:
October 15, 2018
Export Citation:
Assignee:
BRIDGESTONE CORP
International Classes:
F16F13/10
Attorney, Agent or Firm:
Sumio Tanai
Nishizawa Kazumi
Hiroki Ninai
Makiko Otsuki
Nishizawa Kazumi
Hiroki Ninai
Makiko Otsuki